The normal respiratory rate for a human being is 15.0 breaths per minute. The average volume of air for each breath is 505 cm3 at 20degreesC and 9.95 x 10^4 Pa. What is the volumne of air at STP that an individual breathes in one day? Need answer in cubic meters....
2007-12-06 01:05:14 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
First, use P1V1/T1=P2V2/T2 to calculate the volume of a single breath at STP.
Next, calculate the number of breaths in a day:
15 breaths/minute X 60 min/hr X 24 hr/day = ____ breaths/day
Finally, multiply the volume of a single breath at STP by that last number to give you the volume of all breaths. Now, that will have been calcualted in L. There are 1000 L/ 1 cubic meter. So, divide your answer by 1000 to get cubic meters.
2007-12-06 01:21:01 · answer #1 · answered by hcbiochem 7 · 0⤊ 0⤋